A Scalable Route to the SMO Receptor Antagonist SEN826: Benzimidazole Synthesis via Enhanced in Situ Formation of the Bisulfite–Aldehyde Complex
Autor: | Paul H. Wiedenau, Matteo Betti, Salvatore Sanna Coccone, Eva Genesio, Guido Marconi |
---|---|
Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Organic Process Research & Development. 18:699-708 |
ISSN: | 1520-586X 1083-6160 |
DOI: | 10.1021/op4002092 |
Popis: | A practical and scalable route to the SMO antagonist SEN826 1 is described herein, including the discussion of an alternative approach to the synthesis of the target molecule. The optimized route consists of five chemical steps. A new and efficient access to the key intermediate 6 via the bisulfite–aldehyde complex was developed, significantly enhancing the yields and reducing costs. As a result, a synthetic procedure for preparation of multihundred gram quantities of the final product has been developed. |
Databáze: | OpenAIRE |
Externí odkaz: |